show that x2-8x+20 can be writtern in the form (x-a)2 +a where a is an interger
and explain how you know x2-8x+20 is always positive

Answers

Answer 1

Answer:

The answer is . (x-4)²-11.

Step-by-step explanation:

PLEASE MARK AS BRAINLIEST!!!!!


Related Questions

PLS HELP ME UNDERSTAND THIS

Answers

Answer:

Exact form: 44/15

Decimal form: 2.93 repeating

Mixed number form: 2 14/15

Step-by-step explanation:

Each of ten tickets is marked with a different number from 1 to 10 and put in
a box. If you draw a ticket from the box, what is the probability that you will
draw 5, 6, or 4?

Answers

Answer:

10 Percent

Step-by-step explanation:

Common sense 10 tickets, 1,2 ,3.. to 10 will all be 10 percent but if you want 5 6 and 4 then that will be 10% times 3 which is 30% chance of 5 6 or 4.

Answer:

3/10

Step-by-step explanation:

The probability of drawing a card out of the box is 1/10. So the probability of drawing 3 tickets out of the box is

[tex] \frac{1}{10} + \frac{1}{10} + \frac{1}{10} = \frac{3}{10} [/tex]

Liam is currently twice as old as Sally. 4 years ago, Liam was three times as old as Sally. How old is Liam now?

Answers

Answer:

16

Step-by-step explanation:

L = 2 * S

L-4 = (S-4) * 3

L-4 = 3S - 12

L = 3S - 8

2S = 3S - 8

-S = -8

S = 8

L = 16

Answer:

16

Step-by-step explanation:

I will give you 80 points If you help me please help me
Elevator 1 in a building moved from ground position to a final position of +16 feet. Elevator 2 in the same building moved from ground to a final position of –25 feet. Which statement best describes the final positions of these two elevators? (1 point)

Elevator 1 is 16 feet below ground level, and elevator 2 is 25 feet above ground level.
Elevator 1 is 16 feet below ground level, and Elevator 2 is 25 feet above the position of Elevator 1.
Elevator 1 is 16 feet above ground level, and elevator 2 is 25 feet below ground level.
Elevator 1 is 16 feet above ground level, and Elevator 2 is 25 feet below the position of Elevator 1.

Answers

Answer:

Elevator 1 is 16 feet above ground level, and elevator 2 is 25 feet below ground level

Step-by-step explanation:

Elevator one is moving up, so it means it's above ground level since it started on the ground

Elevator is moving negative floors, so it is moving below.

Let me know if you have any questions!

please help me (i don’t know how to do it)

Answers

Answer:

The answer is in the attached picture below.

True or false
8/15<3/5

Answers

Answer:

True

Step-by-step explanation:

This is true, because you have to convert the fraction (3/5) into the same denominator as (8/15).

3/5 = 9/15

9/15 is greater than 8/15 so, 8/15 is less than 9/15

Hope this Helps!

Answer:

3/5

Step-by-step explanation:

3/5 is greater than 8/15

1. What is 20 1/2+ (- 34) − (7− 10 +12) simplified? Show work to support the answer.

Answers

Answer:

-45/2

Step-by-step explanation:

Step by step in the screenshots!!

Solve equation for 3(2x - 5) - (2x - 5) = 6(4x + 5)​

Answers

Answer:

x=-2

Step-by-step explanation:

Erik worked from 3:30 P.M. to 4:05 P.M. Mary worked ſo of an hour. Who worked longer? Explain and show your work.

Answers

Answer:

Mary because she worked a hour and Erik worked 35 mins you need to 30 mins to make a hour and it was already 3:30 for him so he work 35 mins brainliet pls

Step-by-step explanation:

What does it mean when they ask to express four thousand, fifty?

Answers

Answer:

Numbers

Step-by-step explanation:

Here you go:

24000+50

24,050.

Like bro

*sorry read it as 4050 ^_^*

Answer:

it means to put it in numerical form I believe so the answer would be 24,050

Pls help I will give brainliest to first correct answer!!!!


Megan purchased a new gadget for her technology hobby. She plans to sell it sometime in the future; however, its value depreciates monthly. The expression shows the depreciated sales value of the gadget:

2,020 − 22m

What does the coefficient of the expression represent?

The number of months Megan will wait to sell the gadget
The monthly depreciation value of the gadget
The amount of money Megan will get when she sells the gadget
The original value of the gadget

Answers

Answer:

(B) The monthly depreciation value of the gadget

Step-by-step explanation:

The expression given:

2020 - 22m

2020 is the initial value of the gadget.

The coefficient 22 represents the rate of monthly depreciation, and the m is the number of months.

The entire expression is the depreciated value after m months.

Correct answer choice is B

6. Find the value of b and the measurement of
each angle
(7b-2)
(3b+2)°

Answers

Answer:

b = 10

Step-by-step explanation:

"7b - 2" is supplementary to "3b + 2"

7b - 2 + 3b + 2 = 180

7b + 3b - 2 + 2 = 180

10b + 0 = 180

10b/10 - 180/10

b = 18

Evaluate e - 1/2f when e = 15 and f = 2

Answers

Answer:

14 is correct answer

Step-by-step explanation:

15-1/2*2

15-1/4

15*4/4-1/4

60-1/4

59/4

= 14.75

(Hope this helps can I pls have brainlist (crown)☺️)

Answer:

Step-by-step explanation:

e-1/2f

15-1/2*2

15-1

14

Can someone explain how you do this and not only give me the answer?

Answers

you subtract them
8850 - 154

HELP

If you are traveling at a speed of 60 miles per hour, how many feet per second is this? 1 mile = 5280 feet


Answers

Answer:

87.99213

Step-by-step explanation:

Alice is deciding where to go on her next trip. She is reviewing some information packets. She has packets advertising European trips numbered 1,2,3, packets advertising African trips numbered 1,2,3,4,5,6, and packets advertising South American trips numbered 1,2. If a single packet is picked at random, what is the probability that the packet is advertising a South American trip AND has an odd number?

Provide the final answer as a fraction.

Answers

Answer:

1/11

There are a total of 3+6+2=11 packets. Of these, there is 1 card that is advertising a South American trip and has an odd number, so the answer is 1/11.

Step-by-step explanation:

Answer:

1/11

Step-by-step explanation:

Nothing to worry about

Answers

Answer:

Your're my bestie

Crislie Mea

Hey best frienddd...

Please help me quickly due at 9:00 pm !!!!

Answers

900 students per teacher
99 students per tutor
3 tutors for 99 students

help me guys I don't get this ?​

Answers

Answer:

Yes sure but can't see the attachment .......

Answer:

If you could provide the question and possible answer choices, I could help you.

1, 3/2 , 9/4 ... Find the 9th term

Answers

Answer:

6561/256

Step-by-step explanation:

You can notice that each term is equal to the previous term multiplied by 3/2. This means that it is a geometric series. The formula to find the nth term is as follows:

[tex]a_{n}= a_{1} *(r)^{n-1}[/tex]

The first term, a1, is 1 and r, the common ratio is 3/2 because that is what you are multiplying by. We can also substitute in n as 9 because we are looking for the ninth term:

[tex]a_{9} = 1 *(\frac{3}{2} )^{9-1}\\\\a_{9} = (\frac{3}{2})^{8}\\\\a_{9} =\frac{3^8}{2^8} \\\\a_{9} =\frac{6561}{256}[/tex]

Write an equation for the situation. Do not solve it
Joe ate 2 hamburgers and then he divided the remaining burgers amongst his 5 friends. Every friend received 2 burgers. How many burgers did Joey start with?

Answers

Answer:

x -2/5 = 2

Step-by-step explanation:

x = hamburgers total

Joey ate 2 = -2

Divided by 5 friends = /5

Answer:

x = 2 + (5 x 2)

Step-by-step explanation:

Let x represent the total number of burgers

CH4+2O2->CO2+2H2O If you change the 2 in front of 2O2 to a 3 what will be the change in the results on the right side of the equation

Answers

Answer:  There is an extra O2 molecule left over.

Step-by-step explanation: A reaction between four oxygen molecules and two methane molecules will not have any leftovers.

There is an extra O2 molecule left over.

What is reaction?

In a chemical reaction, one or more substances—also known as reactants—are changed into one or more additional substances—also known as products. Chemical elements or chemical compounds make up substances.

Reactants are the chemicals that take part in a chemical reaction. The resulting materials are referred to as products. The reactants' characteristics are different from those of the products. Additional Names: chemical change, reaction

Given:

C[tex]H_4[/tex]+2[tex]O_2[/tex] -> C [tex]O_2[/tex] + 2[tex]H_2[/tex]O

So, if we  change the 2 in front of 2O2 to a 3 then we have 4 oxygens to react.

Then, There won't be any byproducts of a reaction between two methane molecules and four oxygen molecules.

Learn more about reaction here:

https://brainly.com/question/22961017

#SPJ2

Nancy Wrote two equivalent expressions. If she sets them equal to each other, will them equation have one solution, no solutions, or infinitely many solutions? Use an example to support your answer.

Answers

The answer is infinetely many solutions.

6+6=6+6

12=12

Pls help I’ll brainlest ASAP

Answers

Answer:

I called her two times, but she did not call back

Step-by-step explanation:

main clause, then subordinate clause(:

Answer:

I called her two times, but she did not call back.

The equation y = 0.7x represents the distance Henry hikes in miles over time in hours. The graph represents the rate that Clark hikes. Determine which hiker is faster. Complete the explanation.

Answers

Answer:

Henry’s unit rate is 0.7 miles per hour. Clark’s unit rate is 1.5 miles per hour . So, Ckark is faster.

Step-by-step explanation:

Distance covered by Henry is represented by y = 0.7x, where x = time (hrs), and y = distance (miles).

Distance covered in 1 hour by Henry would be:

y = 0.7(1) = 0.7 miles per hour

Distance covered by Clark in 1 hour = 1.5 miles per hour

Ckark covers more miles per hour than Henry covers in one hour, therefore, Ckark is faster.

Hope this helped!

Have a wonderful day!

Date
Class
Name
2.1 Independent Practice
FL
8.EE.1.1
my.hrw.
21. Explain why the exponents cannot be added in the product 123. 113.
Why the exponents cannot be added in the product 12 to the power of 2 • 11 to the power of 3

Answers

9514 1404 393

Answer:

  the bases are different

Step-by-step explanation:

It is useful to remember that an exponent signifies repeated multiplication:

  12² = 12×12 . . . . 2 factors of 12

  11³ = 11×11×11 . . . 3 factors of 11

In the product ...

  12² × 11³ = 12×12×11×11×11

there are no factors that are repeated 2+3=5 times. It makes no sense to add any exponents in this product.

14. The value of a baseball player's rookie card began to increase
once the player retired in 1996. The value has increased by
$2.52 each year since then.
a. How much was the baseball card worth in 1997?
In 1998? In 1999?

Answers

1. $2.52

2. $5.02

3. $7.54

I hope this helped! SO sorry if its wrong :(

Konrad is trying to show his teacher why the sum of two rational numbers is another rational number. His first steps are shown. Which is the best method Konrad could use to continue?

Answers

Answer:

mn  + pq = mq+pnnq

Show that mq, pn, and nq are all integers.

Step-by-step explanation:

Answer:

D.

Step-by-step explanation:

mn + pq = mq+pnnq

Show that mq, pn, and nq are all integers.

given f(x)=21x+11 , find f(3)

Answers

Answer:

f(3) =74

Step-by-step explanation:

21(3)+63

63+11

=74

If USA’s fastest man Yohan Blake completed 100 meters in 10 seconds , find average speed in meters per seconds

Answers

100/10 = 10m/s

Hope this helps

Answer:

10 m/s

Step-by-step explanation:

He does 100 meters in 10 seconds.

Divide both numbers by 10.

He does 10 meters in 1 second.

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